Stephen Sweeney's Avatar

Stephen Sweeney

@sweenster.bsky.social

Physicist, Engineer and Semiconductor Technologist. Professor of Photonics & Nanotechnology at University of Glasgow, CTO at ZiNIR Ltd. European. Long suffering Luton Town FC fan. (@sweeneystephen from X)

629 Followers  |  1,012 Following  |  27 Posts  |  Joined: 12.11.2024  |  1.7022

Latest posts by sweenster.bsky.social on Bluesky

Post image

Never fails

09.04.2025 17:52 β€” πŸ‘ 22630    πŸ” 5875    πŸ’¬ 745    πŸ“Œ 311
Preview
Wireless Electricity Is on the Horizonβ€”And It Could β€˜Beam’ Power Right to Your House Power beaming could allow an orbiting space-based power station to deliver one gigawatt of solar power, enough to power about 1 million homes annually.

It was interesting to talk with Darren Orf recently about the opportunities and challenges of wireless power beaming. www.popularmechanics.com/science/ener...

19.03.2025 19:19 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Let every nation know… that we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe to assure the survival and the success of liberty - JFK

01.03.2025 12:52 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Withdraw the state visit invitation to Trump.

Offer one to Zelensky instead. With bells and fucking whistles.

28.02.2025 19:45 β€” πŸ‘ 3352    πŸ” 807    πŸ’¬ 110    πŸ“Œ 40

I think this is the closest many of us have ever got to seeing the real Trump. The only consistent thread in his entire unhinged rant was the love & praise for Vladimir Putin. Zelensky has more courage & dignity in his little finger than every member of Trump's regime & fan club combined.

28.02.2025 19:15 β€” πŸ‘ 8500    πŸ” 1661    πŸ’¬ 270    πŸ“Œ 41

Slava Ukraini

28.02.2025 18:44 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great article on th risks inherent in US Scientific Institutions staying quiet in the face of Trump's assaults on EDI. Please read. πŸ‘‡

20.02.2025 11:11 β€” πŸ‘ 15    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0

Many congratulations to Aidas BaltuΕ‘is who successfully defended his PhD thesis: β€œDeveloping a Time-resolved Photoluminescence imaging system using a compressed sensing approach.” Many thanks to the National Physical Laboratory (NPL) and EPSRC for supporting his project.

19.02.2025 22:40 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

If you’d asked AI to write a piece of Russian propaganda in the style of Donald Trump, this is what you’d get. Well done America, you’ve elected a Russian asset as your President.

19.02.2025 17:15 β€” πŸ‘ 1360    πŸ” 365    πŸ’¬ 43    πŸ“Œ 21
Preview
Trump trumps himself with latest delusional fantasies | John Crace US president loses grip on reality, while delegates at a rightwing conference in London remain cocooned from real world

It's time for us to get serious

www.theguardian.com/politics/202...

19.02.2025 18:54 β€” πŸ‘ 205    πŸ” 43    πŸ’¬ 17    πŸ“Œ 3
Post image

I’m George Takei and I approve of this message.

19.02.2025 15:47 β€” πŸ‘ 145593    πŸ” 30357    πŸ’¬ 2326    πŸ“Œ 1537
Preview
The new world order is exactly what it looks like. Are we too frozen with fear to name it? | Zoe Williams The truth is paralysing. But after JD Vance met the far-right leader Alice Weidel in Germany, it is time to be clear about what we are seeing, writes Zoe Williams

If it looks like a duck… www.theguardian.com/commentisfre...

18.02.2025 20:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image 15.02.2025 11:23 β€” πŸ‘ 44777    πŸ” 12644    πŸ’¬ 671    πŸ“Œ 490
Preview
The Guardian view on campus cuts: academics pay a high price for Westminster’s mistakes | Editorial Editorial: The government should not stand aloof as a crisis unfolds in our universities. A new settlement is needed

www.theguardian.com/commentisfre...

11.02.2025 20:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
An open letter to the President of the Royal Society – time to stand up for your values | Reciprocal Space

An open letter to the President of the @royalsociety.org – time to stand up for your values. occamstypewriter.org/scurry/2025/...

11.02.2025 15:26 β€” πŸ‘ 336    πŸ” 172    πŸ’¬ 7    πŸ“Œ 28
Preview
Of course it’s a coup Miss the obvious, lose your republic

Of course it’s a coup. Miss the obvious, lose your republic.
open.substack.com/pub/snyder/p...

05.02.2025 14:59 β€” πŸ‘ 28586    πŸ” 10942    πŸ’¬ 597    πŸ“Œ 768

Word of the Day is β€˜bayard’ (16th century): one who has the supreme self-confidence of ignorance.

05.02.2025 08:52 β€” πŸ‘ 13183    πŸ” 3458    πŸ’¬ 394    πŸ“Œ 318
Post image

The world's richest man - perhaps the richest man who has ever lived - gloating about shutting down aid for the world's poorest people. All while posing as the champion of the common man.

The great lie of populism in its most naked and morally putrid form.

03.02.2025 19:23 β€” πŸ‘ 1560    πŸ” 524    πŸ’¬ 55    πŸ“Œ 24
Post image

Perfectly captured.

03.02.2025 02:48 β€” πŸ‘ 82644    πŸ” 17419    πŸ’¬ 1471    πŸ“Œ 727
Post image 22.01.2025 17:12 β€” πŸ‘ 70083    πŸ” 17661    πŸ’¬ 973    πŸ“Œ 635

Hell is empty,
And all the devils are here.

20.01.2025 14:38 β€” πŸ‘ 15362    πŸ” 3656    πŸ’¬ 123    πŸ“Œ 131
A very calm Loch Lomond with the snow capped mountains behind.

A very calm Loch Lomond with the snow capped mountains behind.

A very wintry and calm Loch Lomond this afternoon.

11.01.2025 18:16 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Happy New Year Jim!

01.01.2025 00:43 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Happy New Year!

01.01.2025 00:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Two-Dimensional Coupled Wave Theory for Triangular Lattice TM-Polarised Photonic Crystal Surface Emitting Lasers This paper presents a coupled-wave analysis of triangular-lattice photonic crystal surface emitting lasers (PCSELs) with transverse magnetic polarization. Six plane waves coupled by Bragg diffraction ...

Congratulations to Matthew Robinson for publishing his first paper on Two-Dimensional Coupled Wave Theory for Triangular Lattice TM-Polarised Photonic Crystal Surface Emitting Lasers (PCSELs) - a hot topic in the #semiconductor #laser field ieeexplore.ieee.org/abstract/doc...

09.12.2024 00:34 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Perhaps. But I suppose it may send a message, whether intentional or not, that the wider academic body are there for delivery, rather than to contribute and develop the content. In my experience, the discussion at boards has helped to refine the course content based on collective input and debate.

03.12.2024 21:57 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

That’s a significant change. The flavour of degree programmes is largely driven by academics that are sufficiently engaged and motivated to develop new courses. Removing boards of studies will produce degrees that look very similar, take away student choice and reduce the individuality of degrees.

03.12.2024 19:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Advent candles

Advent candles

Happy Advent!

01.12.2024 12:33 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Snowy street.

Snowy street.

First snow of the season here. A good excuse to stay at home, build the traditional snowman and then keep nice and warm inside with the first glΓΌhwein of the season!

23.11.2024 17:58 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It’s a beautiful crystal! I’ve spent many years looking at incorporating bismuth in semiconductor alloys such as GaAsBi. Its large atomic mass makes it very useful for photonics, spintronics and quantum applications.

21.11.2024 22:31 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@sweenster is following 20 prominent accounts